Countries all over the world pursue to improve their government system in order to provide efficient e-services to stakeholders in real time with minimum efforts. Regardless the inclusive adoption and benefits of using ICT, many developing countries face several implementation and adoption challenges. To understand the user adoption of e-services, several model are developed. However, most models concentrated on technological and social dimensions. Moreover, none of the former studies has made any further effort to develop and validate a unified model of e-government includes all the micro-environmental factors affecting e-government adoption. Consequently, this research develops a conceptual model based on PESTLE framework to address the effect of these factors with considering the moderated effect of government support. Taking into account, the effect of PESTLE factors significantly contributes to manage expenses, mitigate risks and attain competitive benefits.